Spiridonava, Y. V., and Y. V. Kovalyov. “Risk Factors of Perinatal and Obstetric Pathology Depending on Cytokines and Oxidative Status of a Pregnant”. Medicni Perspektivi, vol. 21, no. 4, Dec. 2016, pp. 39-44, doi:10.26641/2307-0404.2016.4.90783.